How to Tame Cosmo in ARK
Cosmo is an ASA Aberration creature — a small luminescent rodent that can be tamed passively with Aggeravic Mushrooms. Players can wear it as a backpack for mobility.
Quick Facts
- Diet
- Carnivore
- Temperament
- Neutral
- Tame Method
- Knockout
- Rideable
- No
Cosmo Taming Details
Cosmo is a knockout tame. Its most effective taming food is Kibble (preferred) or Raw Mutton.
Alternative foods: Cooked Lamb Chop, Raw Prime Meat, Cooked Prime Meat, Raw Meat.
Taming Steps
1. Prepare your gear
Bring Tranq Arrows or Tranq Darts, a Crossbow or Longneck Rifle, Narcotics or Narcoberries, and bug repellent.
2. Locate the creature
Find a wild Cosmo on supported maps. Check the spawn map and bring a fast mount or a flyer for transport.
3. Knock it out
Cosmo is a knockout tame. Use a Crossbow, Longneck Rifle with Tranq Darts, or Shocking Tranq Darts. Aim for the head for bonus torpor and keep distance to avoid aggro damage.
4. Feed the right food
Place Kibble (preferred) or Raw Mutton in its inventory (alternatives: Cooked Lamb Chop, Raw Prime Meat, Cooked Prime Meat, Raw Meat). Higher-tier food gives faster taming and higher level bonuses.
5. Maintain torpor
Watch the torpor bar. Feed Narcoberries or Narcotics to prevent it from waking up before the tame completes.
6. Claim & saddle
Once tamed, Cosmo will follow your commands. It cannot be ridden.
Cosmo base stats
Level 1 wild values, with the gain each point adds in the wild and after taming.
| Stat | Base | Per wild level | Per tamed level |
|---|---|---|---|
| Health | 115 | +20.0% | +27.0% |
| Stamina | 100 | +10.0% | +12.5% |
| Oxygen | 200 | +12.0% | +11.5% |
| Food | 450 | +10.0% | +10.0% |
| Weight | 70 | +2.0% | +4.0% |
| Melee damage | 1 | +5.5% | +11.0% |
| Movement speed | 1 | +0.0% | +1.0% |
| Torpidity | 60 | +6.0% | +0.0% |
Taming & saddle figures
Breeding & movement
Where it spawns & other details
Cosmo spawns on Aberration, Astraeos, Genesis Part 1, Valguero.
Related tools & resources
Cosmo — Background & Lore
Cosmo is a small jumping spider that came to ASA in 2024 with the Steampunk content of Bob's Tall Tales. It works as a living grappling hook: its webs let you swing, pull yourself in and cross gaps, and it rides on your shoulder between uses.
Where to find it
It is an uncommon spawn on Aberration, Valguero, Genesis: Part 1 and Astraeos in ASA.
Taming
- Method: a passive, non-violent tame. It is skittish, so approach carefully.
- Food:
Chitin is enough, and 
Plant Species Z Seed, its preferred food, gives much more progress. - Signals: move in and feed it while it glows green. Stand still while it glows red, or it shoots charged webs and runs.
Breeding
It lays eggs that hatch in about 1 hour 26 minutes at 4 to 12 °C. A baby takes about 3.9 days to mature at 1x.
Uses
- Movement: swing mode with web lines you can pull in, reel and release.
- Combat: shooter mode fires web balls that slow targets.
- Aberration: it glows when
Nameless are near, and its Charge Infused Webs strip the armor of light-weak creatures such as Nameless and 
Reapers.
Tips
Equip it through the 
Cosmo Wrist-Shooter. Its carried weight counts as half while it sits on your shoulder, and a glider suit or parachute makes web travel much safer.